What is the standard form for 600+5+3/100

prepared macaroni and cheese $6.35 for 20 ounces = $_____ per ounce a-0.35 b-0.32 c-0.20 answer quickly plz i will give points

Aleksandr [31]

Answer: B 0.32

Step-by-step explanation:

$6.35 / 20

8 0

4 years ago

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Safety regulations require that the time between airplane takeoffs (on the same runway) will be at least 2 minutes. When taking

Xelga [282]

Answer:

1 plane

Step-by-step explanation:

Let's suppose the number of planes waiting or on the runway " P "

the number of planes taking off per hour ' $P_{takeoff}$ '

the time for waiting and the runway $T_{wr}$ so:

P = $P_{takeoff}$ x $T_{wr}$

$P_{takeoff}$ = 18 airplanes per hour

we know that 1 min = 60s

36s = 36/60 = 0.6 min

Also, 3 min and 30 s = 3 + 30/60 = 3.5 min

Next to find the time for waiting and the runway

∴ $T_{wr}$ = 0.6 + 3.5 = 4.1 min/60 (converting into hour)

$T_{wr}$ = 0.068 hour

P = 18x0.068 = 1.23

therefore, there is 1 plane either on the runway or waiting to take off

So, there is 1 plane either on the runway or waiting to take off

Read more on Brainly.com - brainly.com/question/13622877#readmore

5 0

3 years ago

I ran 10 miles in 2 hours. What was my average speed?

gogolik [260]

Answer:

5mph

Step-by-step explanation:

10/2 = 5

if I could get brainliness I will love you

6 0

3 years ago

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1+secA/sec A = sin^2 A / 1-cos A

Fofino [41]

Answer: see proof below

<u>Step-by-step explanation:</u>

$\dfrac{1+\sec A}{\sec A}=\dfrac{\sin^2 A}{1-\cos A}$

Use the following Identities:

sec Ф = 1/cos Ф

cos² Ф + sin² Ф = 1

<u>Proof LHS → RHS</u>

$\text{LHS:}\qquad \qquad \dfrac{1+\sec A}{\sec A}$

$\text{Identity:}\qquad \qquad \dfrac{1+\frac{1}{\cos A}}{\frac{1}{\cos A}}$

$\text{Simplify:}\qquad \qquad \dfrac{\frac{\cos A+1}{\cos A}}{\frac{1}{\cos A}}\\\\\\.\qquad \qquad \qquad =\dfrac{1+\cos A}{1}$

$\text{Multiply:}\qquad \qquad \dfrac{1+\cos A}{1}\cdot \bigg(\dfrac{1-\cos A}{1-\cos A}\bigg)\\\\\\.\qquad \qquad \qquad =\dfrac{1-\cos^2 A}{1-\cos A}$

$\text{Identity:}\qquad \qquad \dfrac{\sin^2 A}{1-\cos A}$

$\text{LHS = RHS:}\quad \dfrac{\sin^2 A}{1-\cos A}=\dfrac{\sin^2 A}{1-\cos A}\quad \checkmark$

3 0

4 years ago

Would this expression:

Ratling [72]

The given expression is a perfect square trinomial.

<h3>How to classify the given expression?</h3>

Here we have the expression:

$(x^2 - 16)^2$

Notice that we can rewrite it as:

$(x^2 - 4^2)^2$

Then we can see that inside the parenthesis we have a difference of squares, but it is squared, so if we define:

$x^2 = a\\4^2 = b$

We will have:

$(a - b)^2 = a^2 + -2ab + b^2 = (x^2)^2 - 2*(4^2)*(x^2) + (4^2)^2$

Which is in fact, a perfect square trinomial.

If you want to learn more about perfect squares:

brainly.com/question/1538726

#SPJ1

4 0

2 years ago